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Finding the Fourth Proportional to 674,683.44, 931,026.60 and 372,858

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Solution

The fourth proportional to 674,683.44, 931,026.60 and 372,858 is: 514,523.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,683.44 : 931,026.60 = 372,858 : x
  2. Step 2: Convert to fraction form
    674,683.44/931,026.60 = 372,858/x
  3. Step 3: Cross multiply
    674,683.44x = 931,026.60 × 372,858
  4. Step 4: Simplify right side
    674,683.44x = 347,140,716,022.80
  5. Step 5: Solve for x
    x = 347,140,716,022.80/674,683.44
  6. Step 6: Final answer
    x = 514,523.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.